GL_EXT_bindable_uniform
http://developer.download.nvidia.com/opengl/specs/GL_EXT_bindable_uniform.txt
	GL_MAX_VERTEX_BINDABLE_UNIFORMS_EXT 0x8DE2
	GL_MAX_FRAGMENT_BINDABLE_UNIFORMS_EXT 0x8DE3
	GL_MAX_GEOMETRY_BINDABLE_UNIFORMS_EXT 0x8DE4
	GL_MAX_BINDABLE_UNIFORM_SIZE_EXT 0x8DED
	GL_UNIFORM_BUFFER_BINDING_EXT 0x8DEF
	GL_UNIFORM_BUFFER_EXT 0x8DEE
	void glUniformBufferEXT (GLuint program, GLint location, GLuint buffer)
	GLint glGetUniformBufferSizeEXT (GLuint program, GLint location)
	GLintptr glGetUniformOffsetEXT (GLuint program, GLint location)